| 摘要 |
<p>The invention relates to guide cable control equipment, particularly for controlling and measurement of the stress borne by cables acting as guides for cages or skips in underground mine extraction shafts. A signal conditioner 2 is arranged to excite a measuring bridge, and amplify and filter the signal emitted by the stress transducer 1, whereas the analogue memory 3 has the function of rectifying the signal given by the conditioner 2 and also of comparing it with the threshold levels preset for alarm and cutout functions at 6, 7, also having the function of memorising the maximum absolute value of the tension delivered by the conditioner. The stresses to which the cables are subjected, and which are transmitted by the transducers coupled to them, are read out instantly at a digital recorder 11 by means of a commutation switch 10. <IMAGE></p> |
